Valve-operating mechanism



Feb. 22,1927. l 1,618,633 H. T. BENNETT ET AL v VALVE OPERATING MEcHANIsM Filed Q61;t 3, 1923 4 Sheets-Sheet L 17H/enfers:

Feb. 22, 1927.

H. T. BENNETT ET AL VALVE OPERATING MECHANISM 4 Sheets-Sheet 2 Filed @Gt- Feb. z2, 1927. 1,618,633

H. T. BENNETT ET AL VALVE PERATING MECHANISM Y Filed Qot, 5, 1925 4' Sheets-Sheet Feb. 22. 1927. 1 1,618,633

H. T. BENNETT ET AL VALVE'OPEIRAIIJCv MECHANI-SM gpg Filed Ont, 5. 1923 4 Sheets-'Sheet 4 l Patented Feb. 22, 1927.

lll

UNITED STATES PATENT .orriczn HOWARDT. BENNETT, or cLAmroN, JAMES ivreNTosn, oF'NonTH BRADDOCK, AND

- vrnfoivras ivi. MNELLY, er entraron, rrNNsYLvaNIA.Y

VALVE-OPERATING MECHANISYM.

llpplicatonv filed October 3,

This invention relates to regulating apparatus for coke yovens of the by-product type, and more particularly lto apparatus for simultaneously regulating the ascension pipe cap and damper valve of such ovens.

One object oi the present invention is t prevent the creation of undue pressure within the coke ovens, due to the oven being closed oit' `from the collecting main and from the atmosphere at the same time, as is the case when the ascension pipe cap and damper valve 'are operated independently.

YAnother object is the provision of a .suitable power operating mechanism :tor simultaneouslyoperating the ascensionpipe cap and damper valve, which means may be controlled Vfrom a point remote from the ovens.

Another object is the provision of a novel form of lluid pressure operated mechanism for operating the ascension-lpipe cap and 'damper valve of a coke oven of the type described, and also to provide a source ofi-luidl pressure adapted kto be moved :from oven to oven, and to be operatively connected to the operating apparatus. v

A further object is to provide an apparatus for simultaneously operating the ascension pipe cap and damper valve'of by-prod.- uct coke ovens, such apparatus being composed ot the novel combination and construction of parts illustrated in theaccompanying drawings, and described in the following' speciication. f

In the (flrawings, Figure lis a diagrammatic plan of a plurality of coke ovens and pusher machine with this invention applied thereto.

Figure is a similar end elevation. Y Figure 3 Vis an elevation showing the ascension pipe cap and damper valve operating mechanism on a large scale.

Figure Ll is a'sectional side elevation of the coupling mechanism Jior forming a con-A nection between the source of iiuid pressure on the pusher machine and the operating mechanism. i i

Figure 5 is a fragmentary sectional ele- *vat-ionk of the forward Iend o't the coupling which are necessary in the event of the dismultiple of the 1923. serial No. 666,319. l

.tance on the `pusher machine between the centerline ofthe door extracting ram and the center ofthe leveling bar being an even distance between-V centers vof `the ovens. kReferring more particularly to the dra-wings, the numeral 2 designates the vbattery .o f ovens as a whole, of which only a porftion 1s shown, the ovens shown being numbered Yfrom 3 to 8, respectively. Each oven 1s fittedfat one end with an ascension pipe 9 and the top or upper end of each pipe 9 lis provided with a hinged cover or cap 10,

whereby the oven chamber is opened orV closed to the atmosphere by raising or closing down the ascension pipe cap.

A suitable collecting main 1l extends longitudinally of the ovens and is connected to each oven through ldamper valvev boxes or casings 12 mounted on the main 11 andconnected to the ascension pipes 9 by lateral extensions 14. A damper valve disk l5 is mounted within each loii the valve'boxes 12 and is adapted to be moved vertically relative to the valve seat 16 so as to open and close the passage from the oven chamber to the collecting main ll.Y

A pusher machine 17 travels on tracks 18 extending along the side of the battery of ovens 2, and carries the usual door extractor 19, pusher ram 20, and leveler bar2l and their accompanying mechanism, these parts vbeingjindicated by their center lines only for vthought necessarv to describe or illustrate it in Jfurther detail. i

Heretofore, the ascension pipe caps and damper valves have been independent-ly and manually operated. i

l The-practice has, heretofore, been to close 15 and then to raise the ascension pipe cap 5 10 when opening the oven to the atmosphere, and to closethe ascension pipe cap 10 and then open the valve 15 when lputting the oven back on the main, this-practice being necessary to preventl the flow of gas from the main into the atmosphere. It will', there- :toi-e, 'be readily seen 'that at` each operation ot these two members there was always a period when. the joven was closed to both the main 'and the atmosphere, thus creating un- VVthe oven to the main 1l by lowering the valve piston walls.

due pressure within the ovens, especially it the asrensioir pipe cap or damper alve should tail to open promptly due to the collection ot tar or other ingredients of the gas on their seats.

The present invention provides for a by link 30, rocker crank 3l and link 321e` the ascension pipe cap l0, so that reciprocation ofthe piston rod `ofthe cylinder will cause a simultaneous movement of both the valve i5 and cap l0. i

"lfhe pusher machine 17 is )rovided with an air compressor 35, driven y a motor 3G and adapted to deliverI air to a reservoir 37 troni which it isdelivered to the cylinder A by nieanso'l' mechanism to be described.

The compressed air ilroin the reservoir iscondueted by pipe 3S to a three Way valve 39, which valve is connected by condnitset() and fil to opposite ends of a fluid pressure cylinder #152 and the ports ofthe valve 39 are so arranged that air isidclivcred to either end ot the cylinder and released from the opposite end according to the position et the valve.

'lhecylinder 42 has its rear end supported y :lor universal movement on a bracket 43, and has its ttorivard end supported ina self adjusted bearing consisting of a ringr l5 car ryinef four springs which are attached to tlccylinder at diametrically opposite points in such a manner that the cylinder may swing for a limited distance inany` directioxri y The cylinderll is l rovided with a hollow coupling` piston 47 nihich AJlovided at `its forward end with a .movable section or plunger 48, having an integral valve stein L19 on .itsinner end and a passageway 5() therctln'ongh. The valve stein 49icarries a 7alvc `5l adapted to normally seat against a valve seat 52 formed on the inside oflthe The outer or exposed end of the plungeris provided with a rubber sealingl ball 53. i

As air is admitted to the rear end of th cylinder' 42 the piston 47 Will beiforeed to nieve ont of the cylinderand the valve 5l will be Jforced against theiseat `52.

A plurality oit conical or funnel shaped receiving heads 55 are spacedalong the battory of ovens,1 tivo being provided foreach oven, and connected by suitable conduitsfto the opposite endsoit the cylinders 24h The heads. 55 are1 so positioned that when the door extractor-19 is `in position to remove thedoor ot au oven the piston 47 'will be `in line with theihead `55, which communicates `end oli the cylinder Li position to :einove` the door oli an ovein the i i y i i Way valve lo ivill he turned to admit troni the rivervoir 37 to the roerend `ol?` the cjlglindcr fia, thus forcing the piston il out ot the cylinder until the plunger portion is seat in and iorius a scalino` joint within the head 35i ruinircled with thc'upper l A"or that oven. The within the head o5 canso a rearward movement olf the linger portion *ich thusopeuiing the valve and completing the air par, to the' cylinder El :iiron the reservoir Si?, pei-initiling the compressed; airito lfioiv into the cylinderff and 'torce the piton `di downwardly; thus sininltanconsiyclosing the damper oiciugg oit the piston valve lo and open ingtlie ascension pipe cap. i

Bel'oic the pusher `machine `is moved itis necessary `for the piston eli' to be removed `:lironi 'within the head 5in andfto do this the tl 'ce Way valve lil operated to direct a llow ol air troni the reservoir into the co1iduit lll, which enters the forward end" of the cylinder and l'orccs the `pistonI eti' baci;` into the cylinder. i i

lWhen the pusher machine is positioneifl so that the leveling' bar 2l ii; in positioi'i to level the charge ot the oven, the three way S) will he turned to adn'iit air :iroin Voir to therea end. o thecylthns torchio` the piston @tout oi" the cylinder until the` plunger portion El is seated in and `fornisa sealing;i connection within the other heai'ro coinnctedwith the lower end et thc cylinder 2l il'or that oven. lhus air is admitted to` the lower emi oi the cylinder Eiand `the pir-:ton lo is :termal upwardly so as to siiuultaueously open the damper valve 5'; and cio-ie ascension pipo cap 1G. lhe pison L`ffl"` ilA4 then removed troni the last mentionedhead he in the saine 1hanner as doscrilnnl above.

ln order to prevent nioi'oinent ol the her machineor car prior to the removal the piston tiff' 'from the heads 55, piston all provided with a circuit interruptor in the forni ol` a contact rhinh 5i' adapted to inale and brealc a circuit through contact tingersil'i. Thus when the pistouis entendcd within either oi the heads 55 the circuit is open and when it is withdrawn or in retracted position the circuit `is closed. interrupted circuit is the circuit to the inotor (not shown) used to nieve the pusher inachinc i'roni place toplace.

In linurc Tavehave shown an arrangenient ot apparatus using tivorcylinders H4t2 ice and their accompanying mechanism, both of which are connected by three vvay valves 39 to the lcompressed air reservoir 37. This construction is only necessaryin theeventl of the distance'on the pusher machine be- Atween the center line ofthe door extractor and the center line of the leveling bar being an even multiple of the distance between centers of the ovens, since when such a con-- dition exists the heads 55 could'not be positioned so that a single cylinder would serve both heads. rEhe same reference numerals Aareusedto designate the several parts ofl this modified structure, since the construction is the same, with the exception lthat tivo cylinders 4t2 Vare used instead ot will be understood that We do not Wish to be u limited to such constructions, since various modifications may be made Without departing from the scope `of the invention as defined in the appended claims.

lVe claim- Y l. The combination with a battery of coke ovens of the by-producttype, each of said ovens having an ,ascension pipe through which gaseous products may pass from the oven, a cap on the upper end of each of said pipes adapted to be opened and closed to open and `close said pipes to theatmospliere, a gas collecting maincommon to the ascension pipes of all of said ovens, and

vdamper valves connecting` said ascension pipes and said main and adapted to be closed when said ascension pipe caps are opened lo open said ascension pipes to the atmosphere and to be opened When said ascension pipe caps are closed, of'a carriage movable along said ovens, individual means for simultaneously operating the ascension pipe cap and damper valve on each oi said ovens, andmeans carried by said carriage for operating all oi? said first named means.

2. rlhe combination with a battery of coke ovens, of'` the lay-product type, each of said ovens having an ascension pipe through which gaseous vproducts may pass from the oven, a cap on the upperend of each of said pipes adapted to be opened and closedto open and close said pipes to the atmosphere, a gas collecting main common to the ascension pipes of all of said ovens, and damper' va'lves connecting said ascension pipes and ,said main and adapted to be closed When said ascension pipe caps are opened to open said ascension pipes to the atmosphere "and to be opened when said ascension pipe caps ovens, individual fluid pressure operated means tor operating vthe ascension pipe cap and damper valve on each oi' said ovens, and means carried by said carriage for controlling the operation of all of said fluid pressure operated means.

8. The combination with a coke oven of' the by-product type, having an ascension pipe through which the gaseous products` may pass from the o ven, a cap on the upper end of said pipe adapted to bel opened and closed to open and close said pipe to the atmosphere, a gas collecting main, and a damper'valve connecting said pipeand said main and adapted to be closed when said cap is opened to open said ascension pipe to the atmosphere and to be opened When said cap 'is closed, of means for simultaneously operating said cap on said ascension pipe and Lsaid damper valve,y said means including a iiuid pressure operated cylinder, a piston in said cylinder connected to vsaid damper valve, and linlr and lever mechanism connecting sai-d piston with said cap. c

. 4. The combination vvitli acoke oven of the by-product type, having an ascension pipe through Which thel gaseous products may pass from the oven, a cap on the upper end of said pipeadapted to be opened and l closed to open and close said pipe tothe atmosphere, aV gas collecting main, and a damper valve connecting said pipe and said main and adapted to be closed When said cap is opened to open said ascension `pipe to the atmosphere and to be opened when said cap is closed, ofmeans 'for simultaneously operating'said cap onsaid ascension pipe and said damper valve, said means including a'iiuid pressure operated cylinder, a piston in sai-d cylinder connected to said damper valve, and a link and rocker crank lever mechanism connecting said piston with said cap.

5. The combination with a battery of colte ovens of the by-product type, each of said ovens having an ascension pipe through which gaseous products may kpass from the oven, a cap on the upper end of each of said pipes adapted to be opened and closed to open and close said pipes to the atmosphere, a gas collecting main common to the ascension pipes of all of said ovens, and damper valves connecting said ascension pipes and said main and adapted to beclosed When said ascension pipe caps are opened to open said ascension pipes to the atmosphere and to be opened When'said ascension pipe caps are closed, of individual means for operating the ascension pipe cap and damper valve on each of said ovens, said means comprising an individual fluid pressure operated cylinder mounted onv each oven and operatively connected to the ascension pipe cap and damper valve 'of said oven, a carriage fare closed, ot a carriage movablealong said the by-product type, yhaving un ascension pipe through which `the gaseous iiiroduels muy pass 'from the oven, `n cup on the upper end of seid `pipe adapted to he `opened und closed `to `open-und close sind pipe to Athestvinosphere, u gus collecting 11min, tund u p ovens of the hy-product type, euch or' uuid domper vulve eounectingsuid pipe und seid meinund adapted to he closed when sind riip is opened to open said ascension pipe io the atmosphere and to he opeuedwheu seid up isolosed, `of power operated nieuns ior oper ating said ascension pipe `cup und dnniper valve, a source 0f power, ineens lfor dctuch- `ably connecting seid sourceoil power to seid power operated ineens, and ineens opereiiie from u point remote from said cup und `seid demper `vulve 'for controlling the flou' oi power to said power operated menus.

'i'. The combination Withebettery ofcoke ovens vlniving :in ascension pipe thrau which gaseous products muy pass from rue oven, u cup on the upper end of euch oi sind `pipes adapted to be opened und closed to open und `close seid pipes tothe atmosphere, l

` `Munn und adapted to he closed when said cap u gas collecting l11min coinnion to 7the essen sion pipes of ull ofsuid ovens, undfdfunper values `connecting said `ascension *pipes und said main und adapted to he lelosed when said ascension pipe caps ure opened to open seidascension )ipes tothe atmosphere und to be opened W en-said ascension pipeieups ure closed, of` a enr-ringe movable nlong said ovens, a Lsource of `iiuid pressure curried by said carriage, individual `{iuid pressure operuted means forfsilnultuneoushJ operating the ascension pipe cup und damper vulve on euch of seid ovens, und fluid pressure opernteduineuus for del':u-hubly connecting said source of `iluid pressl'lre to any one oi Suid lirstnulued fluid `pressure operated ineens. i i

' S. The colnhinution with u buttery oi' rohe ovens oi? the by-produet type, rech io'txiid ovens having un nseensicn pipe throupjh which gusemisproducts muy pass from the over., u cup on the upper end oiieuchiot seid 1pipes udupted to be opened und closed to open `and close seid pipesto the utn'iosphere, u `uns 4collectingr 11min common to the escension pipes of all of said ovens` und duniper vulves connecting said ascension pipes und said "mein `und adapted to` he closed when said ascension pipe caps ure opened to open seid fnscension pipes to the ntniosplwre and toube opened when said ascension pipe `caps are closed, of individuel ineens `for `operating the ascension pipe` cup und demper vulve on `each of sind ovens, seid ineens comprising :in individual iuid pres sure operated cylinder inountedlon euch oven und operatively connected to the ascension pipecup and damper vulve oisuid oven, Suid `Huid pressure operated `cylinders being operuhle from e point remote from said cups und seid vulves.`

p 9. The combination with u Coke oven of `the by-produet type, having an ascension pipe through which the ygaseous 4products nmy `pass from the oven, u cup on the upper endoi said pipe adapted to `loe opened and closed to open und close seid pipe to the i1t unosphere, u gus collecting main, und a `pipe 'through which the gaseous products `muy pass from the oven, :reep on the upper `end of `said pipendepted lto be opened and closed to open undclose said pipe to the ut` mosphere, e gus collecting mein, und u damper `vulve connecting seid pipe und `sand opened to open said ascension pipe to the atmosphere und to lie opened when seid cup is closed, of iuid pressure operated ineens forsinuiltuneously operating suid cup on suidnscension pipe and seid demper valve,

il source `of `iiuid pressure adapted to be detnchublgv connected to seid ineens, and evuive mechanism for controllingr the Huid pressure supplied to Suid ineens.

1l. The combination with u buttery oi. coke ovens of the hy-j'iroduct type, euch of the ovens of said bnttery having un ascension pipe through which the `gaseous products lnuiypuss from the/loven, u. cup on the upper `endotsuid pipe adapted to he opened und closedto open und close suid pipe to the :itmosphere, u gus collecting main extendingalong said l'mttery olg ovens, |and :t demper vulve connecting:euch of seid ascension pipes `withsaid gais collecting main, of an individlual `fluid `pressure operated `Ineens for operating the ascension plpeczip und damper vulve foi euch of suidovens, usouree of fluid pressure adapted to he `moved elongsuid ovens, und ineens for detnchubly connecting,r said source of fluid pressureto suidliiuidoperated Ineens.

12. The combination with a battery' of coke ovens of the b v-produet type, euch `of the ovens of seid butteryY having' un usceusion pipe through which the `gaseous products muy pass from the oven,\u cuponitheupper lli lll

sure cylinder mounted on each of said ovens and operatively connected to the ascension pipe cap and damper valve of the respective ovens, a carriage movable along said battery of ovens, a source of fluid pressure on said carriage, and means vfor detachably connect ing said source of fluid pressure to any o said cylinders. "l

13. In an apparatus for operating an ascension pipe cap and damper valve of a byproduct coke oven2 the combination with a fluid pressure operated` cylinder, of a source of fluid. pressure, and means for detachably connecting said source of fluid pressure to said fluid pressure operated cylinder, saidl means comprising a cylinder, a hollow piston in said cylinder and movable longitudinally relative thereto, a conical receiving head connected to said fluid pressure operated cylinder, and means carried by said piston adapted to form a sealed connection With said conical receiving head.

In testimony whereof We have hereunto set our hands.

HOWARD T. BENNETT. JAMES MGINTOSH. THOMAS M. MGNELLY, 

